baber/WOPTO huggingface dataset:
Patent GB-794436-A (GB)
Title: Process of recovering basic antibiotics by adsorption on cation exchangers
IPC: B01J47/00
Filed: 1955-04-18
Abstract: 794,436. Recovery of basic antibiotics from broths. OLIN MATHIESON CHEMICAL CORPORATION. April 18, 1955 [June 1, 1954], No. 11142/55. Class 2 (3). A basic antibiotic other than polymycin is recovered from a fermentation broth by contacting the whole broth with a particulate cation exchanger deriving its exchange capacity essentially from carboxylic acid groups and particularly a cation exchange resin, separating the antibiotic-stripped whole broth from the particles of exchanger and eluting the antibiotic from the exchanger. Specified basic antibiotics are streptomycin, streptothricin and neomycin. Preferred cation exchangers are resins deriving their exchange properties from carboxylic groups, e.g. "Amberlite" (Registered Trade Mark) IRC-50 and used in its salt form, e.g. sodium cycle. Other resins are Alkalex, Duolite CS100, "Permutit" (Registered Trade Mark) 216 and H-70 and Wofatit C. The whole broth is used as obtained from the fermenter with or without acidification and neutralization. It may be diluted with water to produce a suitable viscosity and may be passed through a screen to remove large particles of solids. The adsorption is batchwise or continuous, in columns or tanks, and may be arranged on the counter-current principle. Particles of cationexchange carried forward by the stripped broth are held back by a screen conveniently of 50 to 80 mesh, in which case, prior to the adsorption step, the whole broth would be prescreened at 80 mesh or below, preferably 100-200 mesh, and the cation-exchanger would be prescreened at 40 mesh. The screen is either inside or outside the column and clogging of the screen is prevented by (a) an agitator placed in the stripped broth near to the screen ; (b) a vibrator actuating the screen; or (c) playing a jet of water on the screen. The process may be operated downflow or upflow, which latter is preferred as there is then less tendency for the screen to clog. The antibiotic is eluted from the saturated cation-exchanger by means of an acid, e.g. nitric, sulphuric or hydrochloric, and the exhausted exchanger is then regenerated by a base such as sodium hydroxide, potassium hydroxide or ammonia, or a salt. Specification 758,041 is referred to.
Patent GB-757552-A (GB)
Title: Improvements in and relating to internal combustion engines
Inventor: CUSHING CYRIL ALBERT
IPC: F01B7/12
Filed: 1954-04-15
Abstract: 757,552. Driving gear; crank cases. ENGLISH ELECTRIC CO.. Ltd. April 7, 1955 [April 15, 1954], No. 11167/54. Class 7(2) In a multi-cylinder two-stroke engine comprising pairs 6, 6<SP>1</SP> and 7, 7<SP>1</SP> of opposed pistons, each pair operating in a common cylinder, a crankshaft 1 arranged between two parallel of cylinders, transverse beams 3, 3<SP>1</SP> pivoted 4, 4' at their centres in the crankcase 2 about axes parallel to and opposite sides of the crankshaft, the beams being linked at each end to one piston of the corresponding cylinder of the two banks and articulated to the small ends of the connecting rods 9, 9', the big ends being journalled on a common crankshaft-throw, the pistons in the cylinder of one bank are at inner dead-centre while those of the corresponding cylinder in the other bank are at outer dead-centre and vice versa whilst the crankshaft centre is obliquely offset from the centre of symmetry so that the exhaust ports 10, 11 are opened before the inlet ports 10', 11<SP>1</SP> by the pistons controlling them. The threepiece crankcase 2 which has access doors 16 in the lower position houses the two cylinder banks, only one cylinder 5 and 5<SP>1</SP> in each bank being shown; each cylinder may have a wet liner 14, 14<SP>1</SP>. The connecting points on thebeams for the rods 9, 91 are diagonally disposed.
Patent GB-223943-A (GB)
Title: Improved press for moulding thermoplastic materials
IPC: B29C43/02
Filed: 1923-04-25
Abstract: 223,943. Columbia Graphophone Co., Ltd., and Forse, W. T. April 25, 1923. Moulding-machines ; heating and cooling dies; moulding phonograph records.-In presses for gramophone records &c., of the type comprising upper and lower platens between which forming dies are inserted, the dies are automatically closed together during insertion and opened during withdrawal ; also the press is set into operation by the correct positioning of the dies and means is provided to prevent withdrawal of the dies while under pressure. As shown, the dies are carried by holders a, b, hinged together, the lower sliding on guides u and the upper being opened and closed automatically by linkwork c - - e. A shaft k is furnished with cams f<1> - - i<@> operating valves f - - i controlling the pressing, cooling, and heating media, and is adapted to be driven one revolution by a clutch p closed by a spring p' and opened by a cam on the shaft k through a bar n, Fig. 2, and a lever having a spherical end seated in an opening n' in the bar. When the dies are correctly positioned, a projection l on the die-holder engages a lever m on a vertical shaft and turns an arm m<2> carrying a wedge m<1> which turns the bar n, about the portion n<1>, out of engagement with its cam and permits the clutch p to close; a spring n<2> subsequently restores the member n. Withdrawal of the dies during pressing is prevented by a spring catch @ which engages behind the projection l. Upon rising of the die, the catch x is raised and is held by a spring latch x<2> engaging a notch x<1>. The latch is tripped by the return of the member m. The upper die-holder a, Fig. 5, is furnished with a short peg a<4> clamped by a bush a<5>, and the lower die b is furnished with a sliding peg b<4> frictionally secured within a bush by a spring b<6> &c. The press is furnished with a plunger r, Fig. 1, operable through a pedal y, which is adapted to project the peg b<6> above the lower die for placing material thereon. To adjust the lift given to the various valves, they are operated through levers t<1>, Fig. 2, each carrying a hinged leaf t<3> furnished with a roller t<2> engaging the valve cam and adjustable by a set-screw t<4>.
Patent GB-1437320-A (GB)
Title: Conveyors for transporting discrete loads
IPC: B65G25/02
Filed: 1974-03-13
Abstract: 1437320 Reciprocating conveyers BRITISH MATHEWS Ltd 28 Feb 1975 [13 March 1974] 11273/74 Heading B8A A walking beam conveyer suitable for transporting coils of strip steel 20 comprises a moving beam 10 supported on two lever assemblies 30 and provided with coil supports 18. Each assembly has a pair of flanged wheels 46 which run on rails 48, the wheels being prevented from lifting by members 50 mounted on a fixed structure 24. A lever 32 has one end connected to the beam 10 and the other end connected to a rod 38 of an hydraulic jack 40 of which the cylinder is pivotally mounted on the beam. The structure 24 includes longitudinally extending fixed supports 22 which have portions 26 inclined to receive the coils 20 when the moving supports 18 are lowered. The beam 10 is reciprocated longitudinally by an hydraulic jack 52. In operation, the jacks 40 are simultaneously operated to raise the beam 10 which, after being moved longitudinally by the jack 52 while supporting the coils 20, is lowered and then returned longitudinally to its start position. Control circuits determine the sequence of operations of the jacks and sensing devices sense the position and movement of the coils. Devices can be provided for adjusting the orientation of the coils before they are discharged. There may be more than two lever assemblies and more than one horizontal jack. Air jacks may replace the hydraulic jacks or other devices may be used for rotating the levers 32.
Patent GB-691743-A (GB)
Title: A new or improved extractor magnet assembly
Inventor: RICHARDS HOWARD HARRY
IPC: B03C1/28
Filed: 1950-05-08
Abstract: 691,743. Magnetic separators. RAPID MAGNETIC MACHINES, Ltd. April 25, 1951 [May 8, 1950], No. 11346/50. Class 72 An extractor magnet assembly comprises a permanent magnet or a series of magnets mounted on a frame which extends transversely over the path of material in a machine and which is guided at its ends for vertical adjustment and rests on supports on which it is angularly movable about a horizontal axis, means being provided for locating the frame in different angular positions. As shown, a series of horse-shoe or U-shaped magnets 11 are mounted on a frame 10 by bolts 12, the frame carrying at either end a plate 13 to which is fixed a trunnion 14 and a hexagon 16. The trunnions are received in slots in brackets 18 forming part of the structure of the machine, the brackets having flanges on which are mounted vertically adjustable bolts 20 the heads of which support the hexagons 16. A handle 22 is mounted on the frame by means of which the latter may be angularly adjusted. The magnets may be fixed at rightangles to or lengthwise of the length of the frame, in the latter case adjacent poles are of opposite polarity. A non-magnetic case may be fitted round the magnets.
Patent GB-507365-A (GB)
Title: Improvements in and connected with lamp shades, ornamental bowls or plaques, mirrorsor the like associated with illuminating means
IPC: F21V33/00
Filed: 1938-04-13
Abstract: 507,365. Phosphoric acid baths, KAHN, R. J. Feb. 28, 1938, No. 6189. [A Specification was laid open to inspection under Sect. 91 of the Acts, Sept. 5, 1938.] [Class 82 (ii)] The presence of hydrosulphurous acid (H2S2O4) is brought about in phosphatation baths used for the treatment of metals in order to accelerate the phosphatation process. For example, there may be added to the bath any of the salts or compounds or organic derivatives of hydrosulphurous acid. The bath is preferably maintained at a pH value between 3À5 and 5 and at a temperature between 90 and 100‹ C. The percentage of hydrosulphurous acid present may vary between 5 and 10 per cent of the weight of the salts of phosphoric acid present, the percentage of these salts, being between 2 and 3 per cent by weight of the aqueous contents of the bath. The duration of the treatment may be about a quarter of an hour.
Patent GB-454969-A (GB)
Title: Improvements in and relating to static vacuum or suction cleaning installations
IPC: A47L9/24
Filed: 1935-04-12
Abstract: 454,969. Pipe couplings. LAMSON PNEUMATIC TUBE CO., Ltd., and BURL, H., 132, Cheapside, London. April 12, 1935, No. 11414. [Class 99 (i)] A connection point for vacuum cleaning installations comprises a box 9 having a socket to receive a hose pipe connector 11 which is secured by a bayonet type coupling. The box contains a valve comprising a plate 12 pivoted at 13 and having an opening 14. A recess 15 in the plate is engaged by a projection 20 on the connector so that the plate is moved to the open position when the connector is rotated to lock it in the socket where it may be retained by a spring detent. Specification 372,068 is referred to.
Patent GB-474037-A (GB)
Title: Improvements in or relating to mechanisms for games of manipulative skill
IPC: G07F17/32
Filed: 1936-04-21
Abstract: 474,037. Amusement apparatus. McCURD, W. A. April 21, 1936, No. 11420. [Class 132 (ii)] [Also in Group XVIII] An amusement apparatus comprises a table on which articles are displayed, an article ejector adapted automatically to traverse the table, and means whereby the operator can effect movement of the whole of the table in a direction transverse to the movement of the ejector throughout such movement. As shown, an annular table 12 is rotatable by means of a hand-wheel 23 so that a selected article thereon can be brought into the path of movement of an ejector 55. The centre part 13 of the table is of upwardly conical formation, and has a central opening 14 through which an article can be discharged to a delivery receptacle. To operate the ejector 55, a handle 29 is given half a turn in a clockwise direction, so that a pawl 32 on an arm 31 engages under a projection 33 on a heavy slidable bar 28 and raises it until the pawl 32 slips past the projection 33. The bar 28 then slowly descends under the control of a centrifugal governor 37 geared to rack teeth on the bar, and its movement is transmitted by means of a pawl 43, bell-crank 45, and a rod 48 to a vertical shaft 24 supporting the ejector which moves inwardly towards the opening 14, and discharges an article therethrough if the operator has successfully located the table 12 before or during the movement of the ejector. The ejector is supported by a link 27 carried by a lever 26, which is free to pivot upwardly on an arm 25 of the shaft 24 in order to allow the ejector to rise up the conical centre part of the table. A pivotal connection is provided between the ejector and link 27, and the ejector is bevelled at 57 for the same reason. The link 27 is free to pivot backwardly on the lever 26 to enable the ejector to ride over articles on the table during its return movement. The return movement of the ejector is effected by a weight tensioned cord 58 attached to the bell-crank 45, when the pawl 43 has passed out of engagement with the bell-crank. The handle 29 is locked after it has raised the bar 28 by engagement of a pawl 39 with a ratchet wheel 38, but is freed again as the bar reaches its lower position.
Patent GB-458223-A (GB)
Title: A new or improved collapsible ground sheet and picnic or like table
IPC: A47B3/00
Filed: 1936-04-22
Abstract: 458,223. Groundsheets. GOLDRICH, S., and GOLDRICH, S., 22, Richmond Avenue, Carolside Park, Clarkston, Renfrewshire. April 22, 1936, No. 11477. [Class 140] [See also Group XIV] A groundsheet for picnics comprises a stem A with a spike B to be driven into the ground, and an umbrella-like frame of spokes or ribs F covered with a fabric upor which persons may sit down. The upper end of the stem is fitted with a similar umbrella-like frame K or which a fabric table may be stretched.
Patent GB-114921-A (GB)
IPC: B01D17/04
Abstract: 114,921. Carroll, J. May 15, 1917. Separating by gravity.-Relates to apparatus for separating grease or fat from water and consists in a vessel C having a water-cooled passage P communicating with a funnel E. A tube G fits in the passage P and a scraper F having a rubber disk capable of being drawn through the tube G normally rests within this tube. Hot greasy water is introduced into the vessel C up to the base of the funnel E and cold water run irto the jacket surrounding the passage P. The grease congeals in the tube G which is then withdrawn and the congealed grease removed by pulling through the scraper F. A number of passages P having tubes G and scrapers F may be provided and the funnels E may communicate with one another.
Patent GB-492803-A (GB)
Title: Treatment of rubber
IPC: C08K5/32
Filed: 1938-04-14
Abstract: An anti-oxidant for oils, soaps, &c. consists of a nitroso derivative of an alkoxy-substituted diarylamine of the general formula <FORM:0492803/III/1> in which R represents an alkyl group and AR an aryl residue. About 1 per cent of the nitroso derivative is added. Examples of such derivatives are: bis-(p-methoxy-phenyl-nitrosamine), phenyl - p - benzyloxy - phenyl - nitrosamine, phenyl - p - isopropoxy - phenyl - nitrosamine, and phenyl-p-methoxy-phenyl-nitrosamine.ALSO:An anti-oxidant for synthetic resins &c. consists of a nitroso derivative of an alkoxy-substituted diarylamine of the general formula <FORM:0492803/IV/1> in which R represents an alkyl group and AR an aryl residue. About 1 per cent of the nitroso derivative is added. Examples of such derivatives are bis-(p-methoxy-phenyl-nitrosamine), phenyl - p - benzyloxy - phenyl-nitrosamine, phenyl - p - isopropoxy - phenyl-nitrosamine and phenyl-p-methoxy-phenyl-nitrosamine.ALSO:Rubber and similar oxidizable substances are preserved against oxidation by incorporating a nitroso derivative of an alkoxy-substituted diarylamine of the general formula <FORM:0492803/V/1> in which R represents an alkyl group and AR an aryl residue. About 1 per cent of the nitroso derivative is added.  Examples of such derivatives are, bis-(p-methoxy-phenyl-nitrosamine), phenyl-p-benzyloxy-phenyl-nitrosamine, and phenyl-p-methoxy-phenyl-nitrosamine.
Patent GB-1420722-A (GB)
Title: Hot-air turbine engine
IPC: F02C1/04
Filed: 1974-03-15
Abstract: 1420722 Hot air turbine plant W HARTLEY 15 March 1974 11562/74 Heading F1G The invention relates to a hot air turbine engine in which the compressor, heating section and the turbine are formed as an integral rotor assembly. The assembly comprises an inner casing 2 and an outer casing 3 secured to a shaft 7 mounted in bearings 1, the two casings defining an annular passage open at the inlet end 8 and at the outlet end 9. Blades 4 are disposed between the casings at the inlet end to define a centrifugal compressor, and blades 5 are disposed between the casings at the outlet end to define a radial inward flow turbine. A series of partitions are disposed between the casings between the compressor and turbine portions to form the heating section. Air compressed in the compressor section is heated indirectly in the heating section, then expanded in the turbine section, the turbine acting to drive the compressor also to provide useful power. A stator casing 10 may be disposed around the outer casing 3, there being seals 11 at the ends and the space between the casings 10 and 3 may be evacuated.
Patent GB-1532982-A (GB)
Title: Active circuits simulating inductances
IPC: H03H11/48
Filed: 1975-03-20
Abstract: 1532982 Active impedance converters POST OFFICE 4 March 1976 [20 March 1975] 11582/75 Heading H3U An active impedance element is constituted by three impedances C16, R27, R28 in series and an amplifier A6, the non-inverting input of the amplifier being connected to the junction between the first and second impedance, and the inverting input and the output being connected via a fourth impedance C 18 to the junction between the second and third impedance. As shown, with the first and fourth impedances capacitive, and the second and third impedances resistive, the impedance between the ends of the series chain of the three impedances is R27 + R28 + jw R27.R28.C18. The element is connected as the shunt arm of a T network 26 having C15, C17 as its series arms to give a high pass response. If first and fourth impedances are made resistive and the second and third capacitive, as in the circuit 27, then the impedance between the ends of the series chain R22, C12, C13 is given by 1/jw C12 + 1/jw C13 - <SP>1</SP>/w<SP>2</SP> C12.C13.R24. This element forms the shunt arm of a further T network having R21, R23 as its series arms, and forming a lowpass filter. The two filters have their inputs and outputs connected in parallel to provide a band stop response. A similar high pass section alone is described with reference to Fig. 6 (not shown). In another high pass filter the shunt element of the filter includes a gyrator circuit 24. The filters are described as forming part of a multi-frequency signalling system.
Patent GB-387181-A (GB)
Title: Improvements in the production of zinc sulphide
IPC: C01G9/08
Filed: 1932-04-22
Abstract: Material containing zinc sulphide, for instance an ore or concentrate, is treated with sulphuric acid to form zinc sulphate and produce an active evolution of hydrogen sulphide, the zinc sulphate is brought into solution and purified, and the pure solution then treated with the evolved hydrogen sulphide to precipitate zinc sulphide, which is filtered, dried, and calcined to produce a pigment.  In the first step, sulphuric acid of 52 DEG  Be is preferably used, and its concentration in the mixture during the reaction maintained substantially constant, as by effecting reaction at the boiling point of the acid, that is at 150 DEG  C., or by adding acid as the reaction proceeds.  When a large proportion of the zinc sulphide has been converted to sulphate in the agitated reaction mixture, the latter is subjected to an ageing operation, as in a tunnel dryer, say at 150 DEG  C., to complete the conversion.  The zinc sulphate solution may be purified from iron by aeration in the presence of copper at a pH value of 4.8, manganese be removed by oxidation with potassium permanganate, and cadmium and copper by means of zinc dust.  Precipitation of zinc sulphide may be effected at 60 DEG  C. by passing the pure solution, diluted if necessary, in countercurrent to the hydrogen sulphide, and the slurry formed be subjected to an ageing treatment of several hours before separating the sulphide.  The latter is repulped with water, rendered alkaline as by addition of barium or calcium hydroxide or barium sulphide, filter pressed, calcined, quenched, ground wet in a ball mill, again filter pressed, and then dried and disintegrated.  Specifications 263,119 and 263,120, [both in Class 95, Paints &c.], are referred to. The Specification as open to inspection under Sect. 91 comprises also the following subject-matter: the treatment of the zinc sulphide material with sulphuric acid in such manner that the reaction product discharged is substantially dry.  This subject-matter does not appear in the Specification as accepted.
Patent GB-1498546-A (GB)
Title: Magnetically operable lock
IPC: E05B47/00
Filed: 1976-03-23
Abstract: 1498546 Magnetically operated lock MRT MAGNET - REGELTECHNIK GmbH 23 March 1976 [26 March 1975] 11724/76 Heading E2A  A magnetically operated lock comprises a rotatable cylinder 4 housing- a locking slide 8 with radially projecting rib 10, the slide being biassed outwards by springs 14, 16. Chambers 20, 22, 24 with depressions 26, 28, 30, 32, 34 are formed in the locking slide and house balls 36. In the locked state the balls are arranged randomly inthe chambers so preventing the locking slide 8 moving radially inwards out of cam groove 12 on rotation of the cylider. On insertion of the correct key 40 provided with magnets 42 into key passage 38 the balls are aligned with the appropriate depressions 26 to 34 so allowing the locking slide to move on rotation of the cylinder. The chambers may have a multiplicity of depressions and be divided by a rib 25. A multiplicity of locking slides may also be used. Master and group key systems may be used.
Patent GB-551925-A (GB)
Title: Trimmer mechanism for sewing machines
IPC: D05B37/04
Filed: 1941-09-12
Abstract: 551,925. Sewing-machines. FAIRWEATHER, W. C. (Singer Manufacturing Co.). Sept. 12, 1941, No. 11726. [Class 112] An independently driven knife bar, inclined to the needle-bar, is driven from an eccentric on a transverse shaft through toggle links that can be broken and straightened during running. The knife-bar and mechanism can be detached as a unit. The knifebar 18 is mounted in an arm 13 of a bracket 12 secured to the machine arm and the transverse shaft 42, carrying the operating eccentric 45, is mounted in a bracket 36 secured to the bracket 72. The pitman between the eccentric 45 and the knife-bar is provided by a toggle 32, 47, Fig. 5, and a clip 54 holds the parts resiliently in line. The link 32 is pivoted on a projection from the knife-bar which slides in a slot 27. A spring 34 raises 'the knife-bar when the toggle is broken. The pivot pin 50 reciprocates idly in a slot in a lever 59 and the toggle is broken when this lever is turned by a finger lever 55 engaging a pin 58. The toggle is straightened by means of a tip 55<SP>1</SP> on the lever 55 when.it is pressed on to a plunger 62 mounted above a spring 64 in the hollow knife-bar. The shaft 42 carries two belt pulleys and is driven from an electric motor mounted on the machine arm.
Patent GB-128628-A (GB)
Title: Improvements in or relating to Automobile Transport Sets.
IPC: F41A23/26
Filed: 1917-08-15
Abstract: 128,628. Compagnie des Forges et Acieries de la Marine et d'Homecourt. Jan. 2, 1917, [Convention date]. Propelling by power supplied from the load to the transport vehicle.-An automobile set comprises a transport vehicle or lorry a with a motor c supplied by power from the generating-motor e of the load d, which is an endless-track ammunition wagon. The transported vehicle d may be a gun carriage with endless-track tractor, and the connexion between the load engine and the lorry motor may be electrical, hydraulic, or mechanical. An auxiliary trailer may supply the energy to the transported load or to the transport vehicle.